[vlc-commits] JSON tokenisation rules

[Rémi Denis-Courmont]

vlc | branch: master | Rémi Denis-Courmont <remi at remlab.net> | Sun Sep 27 15:30:31 2020 +0300| [7d9fdcfaef5ecb9b590bfd5fa7be450dcdf02d6d] | committer: Rémi Denis-Courmont

JSON tokenisation rules

> http://git.videolan.org/gitweb.cgi/vlc.git/?a=commit;h=7d9fdcfaef5ecb9b590bfd5fa7be450dcdf02d6d
---

 modules/demux/Makefile.am    |  1 +
 modules/demux/json/lexicon.l | 69 ++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 70 insertions(+)

diff --git a/modules/demux/Makefile.am b/modules/demux/Makefile.am
index f46fcdb92e..cde3c90776 100644
--- a/modules/demux/Makefile.am
+++ b/modules/demux/Makefile.am
@@ -514,6 +514,7 @@ libdemux_mock_plugin_la_LIBADD = $(LIBM)
 noinst_LTLIBRARIES += libdemux_mock_plugin.la
 
 libvlc_json_la_SOURCES = \
+	demux/json/lexicon.l \
 	demux/json/json.c demux/json/json.h
 libvlc_json_la_CPPFLAGS = $(AM_CPPFLAGS) -I$(srcdir)/demux/json
 libvlc_json_la_LIBADD = $(LTLIBVLCCORE) ../compat/libcompat.la
diff --git a/modules/demux/json/lexicon.l b/modules/demux/json/lexicon.l
new file mode 100644
index 0000000000..9aa655a245
--- /dev/null
+++ b/modules/demux/json/lexicon.l
@@ -0,0 +1,69 @@
+/*****************************************************************************
+ * json/lexicon.l: JSON tokeniser
+ *****************************************************************************
+ * Copyright © 2020 Rémi Denis-Courmont
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation; either version 2.1 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
+ *****************************************************************************/
+
+%option 8bit
+%option nodefault
+%option noinput
+%option reentrant
+%option nostdinit
+%option nounput
+%option noyywrap
+
+%{
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include <stdbool.h>
+#include <stdlib.h>
+#include "json.h"
+
+enum { VALUE_NULL, BOOLEAN, NUMBER, STRING };
+
+%}
+
+%%
+
+[\t\r\n ]		;
+
+"null" {		return VALUE_NULL; }
+
+"false"	{		//yylval->boolean = false;
+			return BOOLEAN; }
+
+"true" {		//yylval->boolean = true;
+			return BOOLEAN; }
+
+-?(0|([1-9][0-9]*))(\.[0-9]+)?(e[+-]?[0-9]+)? {
+			//yylval->number = atof(yytext);
+			return NUMBER; }
+
+\"([^"\\]|\\[\"\\/bfnrt]|\\u[0-9A-Fa-f]{4})*\" {
+			//yylval->string = json_unescape(yytext + 1, yyleng - 2);
+			return STRING; }
+
+[{}:,[\]] {		return *yytext; }
+
+. {			return *yytext; }
+
+<<EOF>> {		return 0; }
+
+%%